As to your question on limits - I don't see that in there. Looking at their KB, I can see limits for prop trading firms to restrict subordinate traders - and even there it is all in money terms - there is no explicit option to say "you can only trade CL and your position limit is X.
The only...
I started exactly the way you did, one client, I would log into his IB account and it was a headache. F/F really doesn't cost anything, and makes the whole thing much smoother.
cvds16, you should still do a friends and family account on IB. This way, if you have any issues, you can call an IB rep and get support for yourself. Everything becomes easier. Furthermore, you never know if you pick up another client...
Are you suggesting that the former is stronger than the latter? B/C from what I see, even if there is a strong volume spoke at the end, there is still a sharp drop off in volume at 2...
My understanding is that NYMEX closed all the open trading pits in 2015. However, why is the volume still highest during those hours, for example 9:30AM - 2PM EST for QM/CL?